Fastest free Zircuit RPC, live no-key endpoint latency
HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Zircuit RPC endpoint, audited every 60 seconds from 3 regions.
TL;DR. As of , Zircuit Foundation leads rpc latency at 206 ms (p50, 24h) on Fastest free Zircuit RPC, live no-key endpoint latency. Source: OpenChainBench, https://openchainbench.com/benchmarks/zircuit-rpc.
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Comparing free RPC endpoints across every chain we measure? Open the cross-chain RPC matrix →
Zircuit (chain 48900) is an EVM-compatible L2 with sequencer-level threat detection using AI models to classify and quarantine malicious transactions before they are included in blocks. It launched on mainnet in 2024, ZRC governance token, built on an OP-Stack foundation with custom security extensions. The Zircuit Foundation's mainnet.zircuit.com provides keyless access probed every 60 seconds from three regions.
Methodology
Per-chain member of the RPC latency cluster, extended to Zircuit. We measure the round-trip latency of a single, identical RPC call (`eth_getBlockByNumber`) against every no-key public Zircuit endpoint that sustains continuous probing, 1 provider at launch, every 60 seconds, from us-east, eu-west and Singapore. The harness classifies every response (ok / http_err / jsonrpc_err / stale / timeout) so the leaderboard rewards sustained availability rather than fast error messages. The cross-chain view lives on the parent `rpc-capabilities` benchmark; this page is the Zircuit-scoped answer with per-region breakdowns as a first-class dimension.
Frequently asked
What is the fastest free Zircuit RPC right now?
Zircuit Foundation currently leads at 206 ms (`eth_getBlockByNumber` p50 over the last 24h), measured every 60 seconds from us-east, eu-west and Singapore. The leaderboard re-sorts continuously against fresh Prometheus samples.
Which Zircuit RPCs work without an API key?
The Zircuit Foundation endpoint (mainnet.zircuit.com) is the free, keyless Zircuit RPC sustaining probes from all 3 regions. Every listed endpoint was live-verified before inclusion.
Does the fastest Zircuit RPC change by region?
Often. The region tabs at the top of the page re-scope every number to a single origin; pick the one closest to where your requests originate.
How is Zircuit RPC latency measured here?
One identical JSON-RPC POST (`eth_getBlockByNumber`) every 60 seconds against each provider from each of 3 regions. Responses are classified so an endpoint stuck on an old head or returning errors is never ranked as fastest.
Source code github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities